The grammar rule about this topic says that: The specific antecedents are the nouns that are replaced by the pronouns.
Taking in consideration the above explanation the sentence which the pronoun and antecedent not in agreement is option A.
Jane is planning her college schedule, something you need to do when register for classes.
The pronoun "you" don't replace the antecedent Jane.
that he is very brave and will stand up for what he believes in
Will come back in comments when completed
